Professional development time for teachers can be incredibly valuable and rare. However, recent research has found that much professional development for teachers may not actually be useful in improving effectiveness in the classroom — ostensibly its primary purpose. In a large-scale longitudinal study of three districts’ investment in professional development, TNTP found that only three in 10 teachers demonstrated substantial improvement in their evaluation scores (while two in 10 actually saw their scores decline). Moreover, after five years in the classroom, teachers rarely improve at all; the average fifth-year teacher’s performance is very similar to that of teachers with fifteen years of experience. School districts spend thousands of dollars per teacher each year on professional development, and cracking the code around how to spend that time and money most effectively is one of the highest-leverage tools administrators have in improving the performance of their schools and districts. Purpose of Professional Development for Teachers For professional development to be effective, it’s essential to first define a specific purpose. Administrators must first identify a gap in their teachers’ professional skill set. Professional development for teachers is not a panacea, and specific goals should be identified at the outset. Have administrators observed a particular instructional practice that is problematic? Have test scores been stagnant for a number of years? Is there a gap for a cohort of students that is concerning? Are teachers asking for help in a specific area? It’s essential to first identify the need in a school before identifying the solution. Once that need has been identified, it’s time to pursue a solution. We’ll dig next into a gap we’ve seen in many schools that can be improved through professional development for teachers. We’ve spent many hours of working side-by-side with teachers and administrators, and we’ve heard many of them express a need for support in preparing their students for college entrance exams. Professional Development for ACT/SAT? At first, the idea of professional development targeting a standardized test may not seem like a particularly good use of time with so many competing priorities. But the best professional development for teachers around ACT and SAT is not just about gaming a test—it’s promoting understanding of what it means for students to be college ready while building data analysis skills for teachers, two of the most important priorities for any school. ACT and SAT data can also provide a clear metric for teachers to identify gaps in their classrooms without the subjective challenges of observation data. TNTP’s professional development study found that 80 percent of teachers whose observation scores had declined substantially in the last several years self-evaluated their own practice had improved “some” or “tremendously” over the same time period. College readiness exam scores and clear data can provide teachers with benchmarks to measure their development and success. By measuring their students’ growth and performance on standards on an objective assessment, teachers can take emotion out of the equation and instead focus on what’s needed to drive student growth. Increasing Rigor [...]